Public Date:
1184573: CVE-2014-9297 CVE-2014-9750 ntp: vallen in extension fields are not validated
A stack-based buffer overflow was found in the way the NTP autokey protocol was implemented. When an NTP client decrypted a secret received from an NTP server, it could cause that client to crash.

Find out more about CVE-2014-9750 from the MITRE CVE dictionary dictionary and NIST NVD.


This issue affects the versions of ntp as shipped with Red Hat Enterprise Linux 5.

Red Hat Enterprise Linux 5 is now in Production 3 Phase of the support and maintenance life cycle. This has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle:

A mitigation for Red Hat Enterprise Linux 6 and 7 is available at:

CVSS v2 metrics

Base Score 2.6
Base Metrics AV:N/AC:H/Au:N/C:P/I:N/A:N
Access Vector Network
Access Complexity High
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 7 (ntp) RHSA-2015:2231 2015-11-19
Red Hat Enterprise Linux 6 (ntp) RHSA-2015:1459 2015-07-21

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 5 ntp Will not fix

External References

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